A hybridization model for the plasmon response of complex nanostructures.

TL;DR: Localized surface plasmon resonance (LSPR) originates from the collective oscillation of conduction electrons when conductive nanoparticles are exposed to an electromagnetic field, which generates remarkably enhanced electric fields surrounding the nanoparticles and leads to strong extinction at the resonant wavelength.

Abstract: We report a photothermal nanoblade that utilizes a metallic nanostructure to harvest laser pulse energy and convert it into a localized explosive vapor bubble, which rapidly punctures a lightly-contacting cell membrane via high-speed fluidic flows and induced transient shear stress. Integrating the metallic nanostructure with a micropipette, the nanoblade generates a micron-sized membrane access port for delivering concentrated cargo (5×108 bacteria/ml) with high efficiency (46%) and cell viability (>90%) into mammalian cells. Additional biologic and inanimate cargo over 3-orders of magnitude in size including DNA, 200 nm polystyrene beads to 2 µm bacteria have been delivered into multiple cell types.

TL;DR: In this paper, the authors present a physically intuitive explanation for why the repulsive symmetric charge alignment results in a low energy bonding plasmon. And they also show that the plasm dispersion for a planar thin film can be obtained from the plasmons resonances of a metallic nanoshell in the limit of infinite radius.

TL;DR: The coupling between two highly localized plasmonic modes is studied, which gives rise to the formation of hybrid plAsmon modes and large mode, which result in unique spectral-directional absorption characteristics in the structure.

TL;DR: In this paper, the authors describe recent progress in the theory of nanoparticle optical properties, particularly methods for solving Maxwell's equations for light scattering from particles of arbitrary shape in a complex environment.

TL;DR: Monodisperse samples of silver nanocubes were synthesized in large quantities by reducing silver nitrate with ethylene glycol in the presence of poly(vinyl pyrrolidone) (PVP), characterized by a slightly truncated shape bounded by {100, {110}, and {111} facets.

TL;DR: Gold nanorods with aspect ratios of 4.6 ± 1.2, 13 ± 2, and 18 ± 2.5 are prepared by a seeding growth approach in the presence of an aqueous miceller template.

TL;DR: In this paper, a general approach to the making of metal nanoshell composite nanoparticles based on molecular self-assembly and colloid reduction chemistry is described, which can be used to construct a new, composite nanoparticle whose optical resonance can be designed in a controlled manner.